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# -*- encoding: utf-8 -*-
# Copyright (C) 2012-2014 Red Hat, Inc. All rights reserved.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#
# Authors: Roman Rakus <rrakus@redhat.com>
#
import random
import string
import subprocess
def user_exists(username):
"""
Return true/false if user does/does not exists
"""
got = field_in_passwd(username, 0)
return got == username
def group_exists(groupname):
"""
Return true/false if user does/does not exists
"""
got = field_in_group(groupname, 0)
return got == groupname
def field_in_passwd(username, number):
"""
Return numberth field in /etc/passwd for given username
"""
for line in open("/etc/passwd").readlines():
if line.startswith(username):
return line.split(":")[number].strip()
def field_in_shadow(username, number):
"""
Return numberth field in /etc/shadow for given username
"""
for line in open("/etc/shadow").readlines():
if line.startswith(username):
return line.split(":")[number].strip()
def field_in_group(groupname, number):
"""
Return numberth field in /etc/group for given groupname
"""
for line in open("/etc/group").readlines():
if line.startswith(groupname):
return line.split(":")[number].strip()
def clean_account(user_name):
"""
Force to delete testing account and remove home dir
"""
if user_exists(user_name):
subprocess.check_call(["userdel", "-fr", user_name])
if group_exists(user_name):
# groups should be expicitely deleted
subprocess.check_call(["groupdel", user_name])
def add_user_to_group(user_name, group_name):
"""
Will add user to group
"""
subprocess.check_call(["usermod", "-a", "-G", group_name, user_name])
def create_account(user_name):
"""
Force to create account; run clean_account before creation
"""
if not user_exists(user_name):
subprocess.check_call(["useradd", user_name])
def clean_group(group_name):
"""
Force to delete testing group
"""
if group_exists(group_name):
subprocess.check_call(["groupdel", group_name])
def create_group(group_name):
"""
Force to create group
"""
if not group_exists(group_name):
subprocess.check_call(["groupadd", group_name])
def random_shell():
"""
Make up a funny shell
"""
return random.choice([
"/bin/ash",
"/bin/cash",
"/bin/dash",
"/bin/hash",
"/bin/nash",
"/bin/mash",
"/bin/sash",
"/bin/stash",
"/bin/splash",
"/bin/wash",
])
def field_is_unique(fname, records):
"""
True if the field in `records` has unique values.
"""
seen = []
for record in records:
if record[fname] in seen:
return False
else:
seen.append(record[fname])
return True
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